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21 Years
experience
Emergency
services
Your Trusted Family Dentist in Ontario, CA
Since 2005, Ontario River Arch Dental has been dedicated to providing comprehensive dental care for families in Ontario, CA, and surrounding areas. Our practice combines advanced technology with personalized attention to address preventive, restorative, and cosmetic dental needs for patients of all ages. With expertise in procedures ranging from children's orthodontics to All-on-4 dental implants, we prioritize patient education to empower informed decisions about oral health.

Our team utilizes digital imaging tools to enhance diagnostic accuracy and treatment planning while maintaining a commitment to affordability through insurance acceptance and CareCredit financing. For urgent dental issues, our 24-hour emergency services ensure timely care to alleviate pain and prevent complications.
Services
Cosmetic Dentistry Periodontal Treatment Dental Implants Orthodontics Family Dentistry Teeth Whitening Root Canal Therapy Sealants Emergency Dentistry Restorations
Details
  • Year established: 2005
Highlights and features
  • We offer 24/7 emergency dental services for urgent care needs
  • Our team has over 18 years of local dental expertise since 2005
  • We provide comprehensive care from pediatric to restorative dentistry
  • Our practice uses advanced technology like digital X-rays and intraoral cameras
  • We accept multiple insurance plans and offer CareCredit financing options
What people say
Thorough oral examination Clean and staff kind Gums healthier Caring dentist Cosmetic work unrecognizable
Services
Cosmetic Dentistry
Transform your smile with our comprehensive cosmetic dental treatments. We specialize in porcelain veneers, teeth whitening, and composite fillings that blend naturally with your existing teeth. Our team creates personalized treatment plans to address discoloration, misalignment, and other aesthetic concerns while maintaining optimal oral health. With advanced techniques and high-quality materials, we help patients achieve confident, beautiful smiles that last for years.
Dental Implants
Restore missing teeth with durable, natural-looking dental implants. Our practice offers single-tooth implants, implant-supported bridges, and All-on-4 solutions for full-arch restoration. Dr. Dinh performs both implant placement and restoration crafting in-house using advanced CEREC technology. These permanent solutions provide superior stability compared to traditional dentures, allowing patients to eat, speak, and smile with complete confidence and functionality.
Orthodontics
Improve dental alignment with our comprehensive orthodontic solutions. We offer traditional metal braces, ceramic braces, and Invisalign clear aligners for patients of all ages. Our Phase I and Phase II treatments address developmental issues in children while providing effective adult orthodontics. Customized treatment plans ensure optimal bite correction and aesthetic improvements, with free consultations available to help patients choose the most suitable option for their lifestyle and goals.
Periodontal Treatment
Prevent and treat gum disease with our specialized periodontal services. We diagnose and manage gingivitis and advanced periodontitis through scaling, root planing, and maintenance therapies. Our team educates patients on early warning signs like bleeding gums and recession while emphasizing the connection between oral health and systemic wellness. Regular periodontal evaluations help maintain gum health and prevent tooth loss.
Emergency Dentistry
Receive prompt treatment for dental emergencies with our 24/7 emergency services. We address tooth pain, broken fillings, knocked-out teeth, and other urgent issues to alleviate discomfort and prevent complications. Our team provides immediate care for injuries and infections while offering guidance on temporary home care measures. Quick response times ensure patients receive critical treatment when they need it most.
People
Lan T. Dinh
Dentist
Dr. Lan T. Dinh has provided comprehensive dental care in Ontario since 2005, specializing in cosmetic and restorative dentistry. He stays current with advancements through membership in the American Dental Association and Academy of General Dentistry. Dr. Dinh focuses on patient education and personalized treatment planning to achieve optimal oral health outcomes.
Questions
What should I do if I have bad breath?
Practice good oral hygiene, brush your tongue, stay hydrated, and visit regularly for professional cleanings to address bad breath causes like bacteria buildup.
How often should I brush and floss?
Brush twice daily with fluoride toothpaste and floss once daily to maintain optimal oral health and prevent dental issues.
Are amalgam fillings safe?
Yes, silver amalgam fillings are considered safe by major dental organizations, though we offer tooth-colored alternatives for those who prefer them.
How often should I have dental exams?
Schedule checkups every six months, or more frequently if recommended based on your individual oral health needs.
What are porcelain veneers?
Thin porcelain shells bonded to teeth fronts, veneers correct discoloration, chips, and minor alignment issues for smile transformations.
What if a tooth gets knocked out?
Handle by crown only, rinse gently, keep moist, and see a dentist within 30 minutes for best reimplantation chances.